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  • Open Access

Noise fingerprints of magnon scattering channels

Yuri Nishiwaki1, Shoki Nezu1, and Koji Sekiguchi2,3,4,*

  • *Contact author: sekiguchi-koji-gb@ynu.ac.jp
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Phys. Rev. Research 8, 043014 – Published 5 October, 2026

DOI: https://doi.org/10.1103/tjjp-m4yx

Abstract

We show that low-frequency magnonic noise provides statistical fingerprints of nonlinear scattering-network configurations in a yttrium iron garnet waveguide. By tuning the magnetic field, we control whether three-magnon splitting and confluence are kinematically allowed and change the active scattering pathways. When three-magnon processes are allowed, the noise exhibits abrupt anomalies and distinct fluctuation classes, including random-telegraph and 1/f-type spectra; otherwise, it approaches a near-white-noise form and evolves smoothly. Simulations support multistep magnon redistribution through competing nonlinear scattering pathways. Fluctuation statistics thus provide an experimental probe of dynamical-state selection in nonlinear magnon scattering networks.

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References (29)

  1. A. V. Chumak, V. I. Vasyuchka, A. A. Serga, and B. Hillebrands, Magnon spintronics, Nat. Phys. 11, 453 (2015).
  2. V. V. Kruglyak, S. O. Demokritov, and D. Grundler, Magnonics, J. Phys. D Appl. Phys. 43, 264001 (2010).
  3. B. Lenk, H. Ulrichs, F. Garbs, and M. Münzenberg, The building blocks of magnonics, Phys. Rep. 507, 107 (2011).
  4. A. V. Chumak, A. A. Serga, and B. Hillebrands, Magnon transistor for all-magnon data processing, Nat. Commun. 5, 4700 (2014).
  5. A. A. Serga, A. V. Chumak, and B. Hillebrands, YIG magnonics, J. Phys. D Appl. Phys. 43, 264002 (2010).
  6. S. A. Wolf, D. D. Awschalom, R. A. Buhrman, J. M. Daughton, S. von Molnár, M. L. Roukes, A. Y. Chtchelkanova, and D. M. Treger, Spintronics: A spin-based electronics vision for the future, Science 294, 1488 (2001).
  7. S. D. Bader and S. S.-P. Parkin, Spintronics, Annu. Rev. Condens. Matter Phys. 1, 71 (2010).
  8. Y. Kajiwara, K. Harii, S. Takahashi, J. Ohe, K. Uchida, M. Mizuguchi, H. Umezawa, H. Kawai, K. Ando, K. Takanashi, S. Maekawa, and E. Saitoh, Transmission of electrical signals by spin-wave interconversion in a magnetic insulator, Nature (London) 464, 262 (2010).
  9. A. G. Khitun, M. Bao, and K. L. Wang, Magnonic logic circuits, J. Phys. D Appl. Phys. 43, 264005 (2010).
  10. V. E. Demidov, S. Urazhdin, H. Ulrichs, V. Tiberkevich, A. Slavin, D. Baither, G. Schmitz, and S. O. Demokritov, Magnetic nano-oscillator driven by pure spin current, Nat. Mater. 11, 1028 (2012).
  11. S. O. Demokritov, V. E. Demidov, O. Dzyapko, G. A. Melkov, A. A. Serga, B. Hillebrands, and A. N. Slavin, Bose–Einstein condensation of quasi-equilibrium magnons at room temperature under pumping, Nature (London) 443, 430 (2006).
  12. D. A. Bozhko, A. J. E. Kreil, H. Y. Musiienko-Shmarova, A. A. Serga, A. Pomyalov, V. S. L’vov, and B. Hillebrands, Bogoliubov waves and distant transport of magnon condensate at room temperature, Nat. Commun. 10, 2460 (2019).
  13. S. Nezu, T. Scheike, H. Sukegawa, and K. Sekiguchi, Unconventional parametric spin-wave pumping in single-crystal iron films, Phys. Rev. B 109, 184402 (2024).
  14. H. Schultheiss, K. Vogt, and B. Hillebrands, Direct observation of nonlinear four-magnon scattering in spin-wave microconduits, Phys. Rev. B 86, 054414 (2012).
  15. H. Suhl, The theory of ferromagnetic resonance at high signal powers, J. Phys. Chem. Solids 1, 209 (1957).
  16. E. Schlömann, J. J. Green, and U. Milano, Recent developments in ferromagnetic resonance at high power levels, J. Appl. Phys. 31, S386 (1960).
  17. B. A. Kalinikos and A. N. Slavin, Theory of dipole-exchange spin wave spectrum for ferromagnetic films with mixed exchange boundary conditions, J. Phys. C Solid State Phys. 19, 7013 (1986).
  18. G. T. Kazakov, A. V. Kozhevnikov, and Y. A. Filimonov, Four-magnon decay of magnetostatic surface waves in yttrium iron garnet films, Phys. Solid State 39, 288 (1997).
  19. V. S. L’vov, Wave Turbulence Under Parametric Excitation (Springer, Berlin, 1994).
  20. M. Mohseni, Q. Wang, B. Heinz, M. Kewenig, M. Schneider, F. Kohl, B. Lägel, C. Dubs, A. V. Chumak, and P. Pirro, Controlling the nonlinear relaxation of quantized propagating magnons in nanodevices, Phys. Rev. Lett. 126, 097202 (2021).
  21. T. Qu, A. Hamill, R. H. Victora, and P. A. Crowell, Oscillations and confluence in three-magnon scattering of ferromagnetic resonance, Phys. Rev. B 107, L060401 (2023).
  22. T. Hache, L. Körber, T. Hula, K. Lenz, A. Kákay, O. Hellwig, J. Lindner, J. Fassbender, and H. Schultheiss, Control of four-magnon scattering by pure spin current in a magnonic waveguide, Phys. Rev. Appl. 20, 014062 (2023).
  23. A. Slavin and V. Tiberkevich, Nonlinear auto-oscillator theory of microwave generation by spin-polarized current, IEEE Trans. Magn. 45, 1875 (2009).
  24. S. Rumyantsev, M. Balinskiy, F. Kargar, A. Khitun, and A. A. Balandin, The discrete noise of magnons, Appl. Phys. Lett. 114, 090601 (2019).
  25. R. Furukawa, S. Nezu, T. Eguchi, and K. Sekiguchi, Mode-dependent magnonic noise, NPG Asia Mater. 16, 2 (2024).
  26. Y. Nishiwaki, S. Nezu, and K. Sekiguchi, Magnonic noise in the parametric spin-wave pumping process, Jpn. J. Appl. Phys. 63, 10SP06 (2024).
  27. T. Devolder, S.-M. Ngom, A. Mouhoub, J. Létang, J.-V. Kim, P. Crozat, J.-P. Adam, A. Solignac, and C. Chappert, Measuring a population of spin waves from the electrical noise of an inductively coupled antenna, Phys. Rev. B 105, 214404 (2022).
  28. L. Siegl, R. Schlitz, J. B. Youssef, C. Runge, A. Kamra, W. Legrand, H. Huebl, M. Lammel, and S. T. B. Goennenwein, Inductive noise spectroscopy of thermally excited magnons, Phys. Rev. Appl. 22, 054036 (2024).
  29. G. Ghibaudo, O. Roux-Dit-Buisson, and J. Brini, Impact of scaling down on low frequency noise in silicon MOS transistors, Phys. Status Solidi A 132, 501 (1992).

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Phys. Rev. Research 8, 043014– Published 5 October, 2026
  • Received 10 February 2026
  • Accepted 17 September 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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